nbd_fio_read_512_uncompressed_direct: (g=0): rw=read, bs=(R) 512B-512B, (W) 512B-512B, (T) 512B-512B, ioengine=psync, iodepth=1
fio-3.15
Starting 1 process

nbd_fio_read_512_uncompressed_direct: (groupid=0, jobs=1): err= 0: pid=2887: Thu Aug 29 22:22:50 2019
  read: IOPS=25.2k, BW=12.3MiB/s (12.9MB/s)(622MiB/50486msec)
    clat (usec): min=20, max=848, avg=38.40, stdev= 4.66
     lat (usec): min=20, max=848, avg=38.55, stdev= 4.67
    clat percentiles (usec):
     |  1.00th=[   27],  5.00th=[   35], 10.00th=[   36], 20.00th=[   37],
     | 30.00th=[   37], 40.00th=[   37], 50.00th=[   38], 60.00th=[   39],
     | 70.00th=[   40], 80.00th=[   41], 90.00th=[   43], 95.00th=[   48],
     | 99.00th=[   52], 99.50th=[   56], 99.90th=[   73], 99.95th=[   81],
     | 99.99th=[  116]
   bw (  KiB/s): min=11122, max=18188, per=99.97%, avg=12610.66, stdev=840.58, samples=100
   iops        : min=22244, max=36376, avg=25221.32, stdev=1681.16, samples=100
  lat (usec)   : 50=98.57%, 100=1.41%, 250=0.02%, 500=0.01%, 1000=0.01%
  cpu          : usr=6.36%, sys=15.47%, ctx=2300012, majf=0, minf=12
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued rwts: total=1273856,0,0,0 short=0,0,0,0 dropped=0,0,0,0
     latency   : target=0, window=0, percentile=100.00%, depth=1

Run status group 0 (all jobs):
   READ: bw=12.3MiB/s (12.9MB/s), 12.3MiB/s-12.3MiB/s (12.9MB/s-12.9MB/s), io=622MiB (652MB), run=50486-50486msec

Disk stats (read/write):
  nbd0: ios=1270881/0, merge=0/0, ticks=42620/0, in_queue=0, util=99.84%